# lt.reproduction fails for wrong input

    x is not an object of class mortaar_life_table or mortaar_life_table_list.

# lt.reproduction produces the right output

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 4.85, 2.37, 1.17, 0.79, 87.77, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 8.34, 4.07, 2.01, 3.5, 19.81, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 7.52, 3.67, 1.81, 2.98, 23.29, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 7.01, 3.42, 1.69, 2.63, 26.39, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 5, 2.44, 1.21, 0.94, 73.92, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 7.01, 3.42, 1.69, 2.63, 26.39, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 7.01, 3.42, 1.69, 0, 26163.39, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 7.01, 3.42, 1.69, 1.81, 38.27, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 7.01, 3.42, 1.69, 1.1, 63.01, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["method", "value", "description"]
        },
        "class": {
          "type": "character",
          "attributes": {},
          "value": ["data.frame"]
        },
        "row.names": {
          "type": "integer",
          "attributes": {},
          "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
        }
      },
      "value": [
        {
          "type": "character",
          "attributes": {},
          "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
        },
        {
          "type": "double",
          "attributes": {},
          "value": [4.39, 105.83, 7.01, 3.42, 1.69, 2.1, 32.99, 0.57, 6.2, 3.18]
        },
        {
          "type": "character",
          "attributes": {},
          "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
        }
      ]
    }

---

    {
      "type": "list",
      "attributes": {
        "names": {
          "type": "character",
          "attributes": {},
          "value": ["corpus mandibulae", "margo orbitalis"]
        }
      },
      "value": [
        {
          "type": "list",
          "attributes": {
            "names": {
              "type": "character",
              "attributes": {},
              "value": ["method", "value", "description"]
            },
            "class": {
              "type": "character",
              "attributes": {},
              "value": ["data.frame"]
            },
            "row.names": {
              "type": "integer",
              "attributes": {},
              "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
            }
          },
          "value": [
            {
              "type": "character",
              "attributes": {},
              "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
            },
            {
              "type": "double",
              "attributes": {},
              "value": [3.37, 62.32, 6.46, 3.15, 1.82, 2.98, 23.24, 0.69, 4.74, 2.51]
            },
            {
              "type": "character",
              "attributes": {},
              "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
            }
          ]
        },
        {
          "type": "list",
          "attributes": {
            "names": {
              "type": "character",
              "attributes": {},
              "value": ["method", "value", "description"]
            },
            "class": {
              "type": "character",
              "attributes": {},
              "value": ["data.frame"]
            },
            "row.names": {
              "type": "integer",
              "attributes": {},
              "value": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
            }
          },
          "value": [
            {
              "type": "character",
              "attributes": {},
              "value": ["m", "dep", "TFR", "GRR", "NRR", "r", "Dt", "D30_D5", "BR", "DR"]
            },
            {
              "type": "double",
              "attributes": {},
              "value": [2.42, 34.05, 5.83, 2.84, 1.45, 1.87, 37.09, 0.69, 4.77, 2.52]
            },
            {
              "type": "character",
              "attributes": {},
              "value": ["Mortality", "Dependency ratio", "Total fertility rate", "Gross reproduction rate", "Net reproduction rate", "Rate of natural increase", "Doubling time in years", "ratio D30+/D5+", "Birth rate", "Death rate"]
            }
          ]
        }
      ]
    }